CN104956773A - Automatic grouping via light and sound - Google Patents
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- CN104956773A CN104956773A CN201480006947.1A CN201480006947A CN104956773A CN 104956773 A CN104956773 A CN 104956773A CN 201480006947 A CN201480006947 A CN 201480006947A CN 104956773 A CN104956773 A CN 104956773A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/12—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/198—Grouping of control procedures or address assignation to light sources
- H05B47/199—Commissioning of light sources
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Abstract
The invention relates to a method for automatic grouping of light sources within an illumination system. The method is performed starting from a first light source of the illumination system emitting a first light signal and a first sound signal. The method includes steps of using an intensity of the first light signal as received by a second light source and an intensity of the first sound signal as received by the second light source to determine a value of a grouping function (410, 420), and assigning the first light source and the second light source to the same group of light sources when the determined value of the grouping function satisfies one or more pre-determined conditions (430, 440, 450). In this manner, a determination could be made whether or not the first and second light sources should be assigned to the same group in a manner that yields improved results over the prior art solutions.
Description
Technical field
Embodiments of the invention relate in general to illumination system field, and, more specifically, relate to the system and method for carrying out Auto-grouping to the multiple light sources in such illumination system.
Background technology
Debugging is the critical activity in the deployment of current lighting system.In brief, debugging refers at the assembly (such as such as light source, transducer and wall switch) of system mounted in the structure and be connected to power supply and the process of the configuration illuminator of generation after being connected to data network (if necessary).During this process, will be grouped and be dispensed to suitable transducer and wall switch by controlled light source together.Usually, by all light sources and the transducer be associated in room and switch identification may be also had to be illumination group.As a rule, this grouping and distribution are such as manually completed by debugging technician.
In large illuminator, debugging may be very long process.Therefore, very large interest is existed for the system at least partially can automatically assisting or even complete this process.Because the illuminator in modern times is often via wired or interconnect based on wireless Wireless networking technologies, so in principle, this backbone network can be used to help this debug process.But, the significant defect of such networking technology is that they reliably can not divide into groups to light source according to their physical location, namely, light source in a room forms a group, and the light source in another room forms another group, because wall does not cause significant obstruction to network signal.Substituting solution may be the light source made for identifying existence relying on photo measure.Assuming that light is easy to be used to the structure of interior walls and many material blocks of decoration, then such solution can be provided for the means more reliably identifying the light source in room.But many rooms have glass wall now, due to glass not block visible light, also may become insufficient for the solution based on light of dividing into groups to light source.
It is required that carry out the technology of Auto-grouping to the light source of illumination system in the mode improving at least some problem in problem described above in this area.
Summary of the invention
An object of the present invention is to provide the system and method allowing the light source in the subinterval in room or room to be carried out to Auto-grouping.
The method proposed is applicable to the illumination system comprising at least the first light source and secondary light source, and carries out after the first light source launches the first light signal and first sound tone signal.The method comprises the following steps: use the intensity of the first light signal received by secondary light source and the intensity of first sound tone signal that received by secondary light source to determine the value of block function, and when the value of determined block function meets predetermined condition, the first light source and secondary light source are dispensed to the group of identical light source.
As used herein, term " light signal " refers to the light wave of any frequency, such as such as visible ray, infrared (IR) or ultraviolet, even if visible ray or IR light are used most by anticipation in practice.As used herein, term " voice signal " refers to the sound wave of any frequency, is used most by anticipation even if ultrasonic in practice.Finally, term " block function " in this context be used to describe to major general as measured by secondary light source by first light source launch light and voice signal intensity as input (other input is possible) and produce one or more digital value as export any function, it is evaluated that described digital value can contrast some predetermined condition providing described first and second light sources whether should be assigned to the instruction of identical group.
Embodiments of the invention realize based on several.First, they are the realizations of the grouping that can be used to light source based on sound.Because voice signal is decayed by glass, so utilize the grouping based on sound can overcome the problem of the glass wall described in the background technology part of the application.Embodiments of the invention are based on being singly that grouping based on the use of sound will be easy to suffer the understanding of other problem further.Such as, wherein room by and the road direction that differs extends to the movement of ceiling office partitions separate situation in (just as what such as complete in the office space of so-called " booth "), sound will be attenuated not too significantly, causes the problem of the grouping about correct light source.Embodiment described herein advantageously utilizes both measurements of light and sound to divide into groups to light source, and wherein the positive aspect of two kinds of solutions is developed and is used to mutually supplement.By using the mode of suitable function (being called " block function " at Ben Wenben), by such as detected by secondary light source, the light launched by the first light source and the intensity of voice signal compares mutually, allows estimation first and second light source whether to be positioned at same room physically and to make the conclusion of the vicinity about the first and second light sources.As a result, can make to produce the mode surpassing the result of the improvement of prior art solution the determination whether the first light source and secondary light source should be assigned to identical group.The additional advantage of such solution is that it will require to carry out the light source in use now the considerably less investment of upgrading aspect, because such light source has not only been equipped with optical receiver and transmitter usually, and is equipped with for daylight set and there is the sound receiver and transmitter that detect.
In one embodiment, block function may depend on the first light signal as received by secondary light source intensity and as the ratio between the intensity of first sound tone signal that received by secondary light source, or its derivative, and the predetermined condition for dividing into groups then may comprise determined ratio within predetermined scope.
In another embodiment, block function may depend on the first light signal as received by secondary light source intensity and as the difference between the intensity of first sound tone signal that received by secondary light source, or its derivative.In such embodiments, method can comprise further: the intensity obtaining the first light signal launched by the first light source and the intensity of first sound tone signal of being launched by first sound source of sound, difference between the intensity determining the first light signal launched by the first light source and the intensity of the first light signal received by secondary light source is as the path loss of the first light signal, difference between the intensity determining the first sound tone signal of being launched by first sound source of sound and the intensity of first sound tone signal received by secondary light source is as the path loss of first sound tone signal, and determine the value of the difference between the path loss of the first light signal and the path loss of first sound tone signal as block function, wherein one or more predetermined conditions difference comprised between the path loss of the first light signal and the path loss of first sound tone signal is in predetermined scope.
In an embodiment, method comprises further and determines that secondary light source receives the step of the difference between time that time of the first light signal and secondary light source receive first sound tone signal.Difference between the time of reception of a signal and the time of reception of another signal is referred to as " flight time " (TOF) sometimes.In this case, TOF refers to the time delay between the reception of the light signal launched by a light source and the voice signal launched by same light source.This embodiment is the measurement that can obtain TOF very accurately based on the concrete combination (relative with other combination of means of communication any) of light and sound measurement, because due to the greatly different speed of light and sound, it is possible for measuring the time delay of voice signal compared with light signal exactly.
In order to get the meaning of determined TOF clear, process the time difference that the equipment of time difference measured needs to know transmitting illuminant when utilizing emitted light and voice signal aspect.Such as, treatment facility can be provided with the information of utilizing emitted light and voice signal while that light source being configured to or be provided with the information of certain the predetermined delay between the transmitting of light signal and the transmitting of voice signal.Once this is known, TOF just allows to be advanced through certain distance cost of medium based on signal and how long makes various conclusion.
Such as, in one further embodiment, ratio not only between the light received and the intensity of voice signal is in predetermined scope, and the difference between the time that determined light signal is received and the time that the voice signal that is associated is received below predetermined value time, the first light source and secondary light source can be assigned to the group of identical light source.Such embodiment allows the TOF of the first sound tone signal using contrast first light signal to measure as the further criterion for distributing the extremely identical group of the first and second light sources.Like this, the group distinguishing the light source in the group of the light source of the gathering in a region in single room and another region of same room is possible.This embodiment is for useful especially when such as such as performing the large room in auditorium, relative hour of distance wherein between the first and second light sources (such as, two light sources are all in the front in auditorium), they will be assigned to identical group, but time the distance between them is relatively large (such as, a light source is in the front in auditorium, and another is after auditorium) they will not be assigned to identical group.
In another further embodiment, TOF can be used to the intensity level detected by normalization.Namely, the intensity of the first light signal received by secondary light source and the intensity of first sound tone signal received by secondary light source can be normalized to the difference between the time that determined first light signal is received and the time that the secondary signal be associated is received, such as, before determining the ratio between described intensity, or before the intensity received is compared to make with some threshold values dividing into groups to determine.This embodiment allows the possible different changing down of the dynamics aspect of the light of the function being suitably considered as the distance that signal is advanced and voice signal.
In substituting embodiment, the intensity of the first light signal received by secondary light source can be normalized to the intensity of the first light signal launched by the first light source, and the intensity of the first sound tone signal received by secondary light source can be normalized to the intensity of the first sound tone signal of being launched by the first light source, such as, before determining described ratio.This embodiment offers the substituting mode using TOF in order to the light of function of distance that is suitably considered as signal and advances and the possible different changing down of the intensity aspect of voice signal.In one embodiment, the first light launched by the first light source and the intensity of voice signal can programmed (that is, known in advance) to the equipment carrying out this method.Alternatively, emissive porwer can be encoded in one or two in the first light and voice signal in any mode known in this area.Such as, use so-called encoded light (CL) technology, the first light and the emissive porwer both voice signal can be encoded in the first light signal.
In an embodiment, the first light source and secondary light source can be assigned to the group of identical light source based on additional information.Such embodiment allows to use such as relevant with the position of the projector in window or room additional information, or may be useful any out of Memory making in the decision whether the first and second light sources should be assigned to identical group.Such additional information or may be provided to carry out this method equipment as the part of debugging/grouper, or to be pre-stored in equipment.
In an embodiment, method can comprise further when the intensity of the first light signal received by secondary light source is under predetermined light intensity value and/or when the intensity of the first sound tone signal received by secondary light source is under predetermined intensity of sound value, establishes the group that the first light source and secondary light source should not be assigned to identical light source.
In an embodiment, method can comprise the intensity of the intensity obtaining the first light signal received by the 3rd light source and the first sound tone signal received by the 3rd light source further to determine the other value of block function, and when the difference between the value and the other value of determined block function of determined block function is less than predetermined threshold value, the 3rd light source is dispensed to the group of the light source identical with secondary light source with the first light source.
In an embodiment, information and/or instruction first light source of the identity of at least one comprised instruction first light source in the first light signal or first sound tone signal will be assigned to the information of the identity of its group.Be similar to and the information of the emissive porwer about signal encoded, this information also can in a manner known in the art in any mode (such as such as using CL) be encoded in one or two in the first light and voice signal.
According to an aspect of the present invention, a kind of control unit is disclosed.(namely control unit at least comprises the receiver of the intensity being arranged to the intensity obtaining the first light signal received by secondary light source and the first sound tone signal received by secondary light source, the suitable receiving member of any kind), and be arranged to the processing unit carrying out method described herein.In various embodiments, processing unit can be implemented with hardware, software, or processing unit is implemented as the hybrid solution with both hardware and software parts.Such control unit can such as be embodied in the Long-distance Control for controlled light system, or is included in another unit (such as computer, smart phone, switch or sensor device) of the automatic Debugging that then can be used to illumination system.
In an embodiment, the receiver of control unit can be arranged to the intensity of the intensity obtaining the first light signal received by the 3rd light source and the first sound tone signal received by the 3rd light source further, and processing unit can be further configured to use the intensity of the first light signal received by the 3rd light source and the intensity of first sound tone signal that received by the 3rd light source to determine the value of described block function, and when the value of determined block function meets described one or more predetermined condition, the first light source and the 3rd light source are dispensed to the group of identical light source.This embodiment allows in a concentrated manner multiple light source to be dispensed to identical group.In a further embodiment, ratio between the intensity that block function may depend on the first light signal received by the 3rd light source and the intensity of first sound tone signal received by the 3rd light source, and predetermined condition is in comprising described ratio in predetermined scope.
In an embodiment, (namely control unit can comprise trigger element further, the suitable trigger of any kind), it is arranged to provide to trigger to launch the first light signal and first sound tone signal and/or provide to secondary light source to the first light source and triggers to receive the first light and voice signal and the intensity determining the first light and voice signal.Trigger element can realize the in check startup of debugging routine.
In an embodiment, trigger element can be arranged to further provide to trigger to launch the 4th light signal and falling tone tone signal and/or provide to one or more in the first light source and described secondary light source to the 4th light source and trigger to receive the 4th light and voice signal and the intensity determining the 4th light and voice signal.Like this, the debugging routine for light source can be managed concentratedly by control unit.
In a further embodiment, can sequentially provide for the triggering of the first light source and the triggering for the 4th light source, thus guarantee when a light source is being launched during by the light of other light source measurement and voice signal, (namely other light source does not launch their light and voice signal, other light source is " silence "), this simplify the detection of various signal and differentiation and may wherein by the decoding of data of encoding.
According to a further aspect in the invention, be arranged in the one or more light sources in each light source that the processing unit carrying out method described herein can be included in illumination system.Such as, secondary light source can comprise: be arranged to reception first light signal and the optical receiver determining the intensity of the signal received (namely, the suitable light-receiving component of any kind), be arranged to receive first sound tone signal and the sound receiver determining the intensity of the signal received (namely, the suitable acoustic reception component of any kind), and be arranged to the processing unit of the step performing method described herein.
In an embodiment, such light source can comprise further be arranged to transmitting second light signal and second sound signal respectively optical transmitting set (namely, the suitable light of any kind launches component) and acoustic emitter (that is, the suitable audio emission component of any kind).This embodiment can realize secondary light source and not only perform and measure and light that process receives from other light source and voice signal, and by serve as generate by by other light source measurement to light and voice signal reflector so that transmit the grouping of light source.
In addition, provide the computer program carrying out method described herein and store the computer-readable recording medium (CRM) of computer program.Such as, computer program can be downloaded (renewal) to existing control unit (such as, optical receiver, Long-distance Control, smart phone or flat computer to existing) and light source, or is stored when manufacturing these equipment.Preferably, CRM comprises permanent CRM.
Hereinafter, in further detail embodiments of the invention will be described.But, it is intended that these embodiments can not be resolved as the restriction for protection scope of the present invention.
Accompanying drawing explanation
Fig. 1 is mounted in the indicative icon of the illumination system in structure according to an embodiment of the invention;
Fig. 2 is the indicative icon of control unit according to an embodiment of the invention;
Fig. 3 is the indicative icon of light source according to an embodiment of the invention;
Fig. 4 is the flow chart making to carry out with light harmony sound the method step of the Auto-grouping of light source according to an embodiment of the invention.
Embodiment
In the following description, set forth many details to understand more thoroughly to provide of the present invention.But will be obvious that those skilled in the art, the present invention can not had in these details by putting into practice one or more.In other example, known feature is not described to avoid the present invention is thickened.
The structure 100 of Fig. 1 illustrative exemplary, its by wall 110(such as, glass wall) be separated into room 120 and 130.Even if wall 110 is illustrated as complete wall in FIG, instruction provided herein is also applicable to the wall 110(of partition wall form such as comparably, the floor place being segmented in structure 100 start but and road of differing extends to the ceiling of structure, or wherein only deposit the segmentation of the half of complete wall in the horizontal direction) and be applicable to wherein according to the situation (such as, because the group of those light sources is located enough far away each other) that there is not the light source of wall still in " room " 120 and 130 and still should be grouped into different groups.Thus, wall 110 can be the spacer body of any kind between the subinterval between room or room, as long as such spacer body can cause the difference of sound and/or the luminous intensity received, and/or cause the difference of the TOF aspect measured, as described in more detail below.
In structure 100, illumination system 140 is installed.In illustrative embodiment in FIG, illumination system 140 comprises 11 light source 150(5 light sources in room 120, and 6 light sources are in room 130).Certainly, in other embodiments, illumination system 140 can comprise the light source 150 of any number being equal to, or greater than 2, and these light sources can be placed on the different place in structure.Light source 150 can comprise any suitable light source, such as such as high/low pressure gas discharge source, laser diode, inorganic/Organic Light Emitting Diode, incandescent source or halogen source.During operation, the light output that light source 150 provides contributes to total illumination that at least part of illumination system 140 for illuminating structure 100 provides.
In the environment of the structure of Fig. 1, an object of the present invention is the light source 150 in each room to be automatically grouped into other group each.Auto-grouping process general concept behind can be counted as involving following three basic steps: measure, grouping and distributing.During measuring process, at least one light source is launched can by the light signal of other light source detection and voice signal.The light source receiving these signals can be determined the dynamics of the signal received (that is, " intensity received ") and alternatively, can identify the source (that is, which light source sends signal) of these signals.Because voice signal is analyzed, thus glass wall or partition wall can such as by they acoustics barrier properties by ultrasound detection to.In an embodiment, all light sources can be configured to launch the light signal that has other light source measurement to arrive and voice signal.Once light and the voice signal of all transmittings detected, each light source can the list of therefrom other light source of the intensity of Received signal strength and received signal by having them.Then, step of dividing into groups can be started.Based on received signal dynamics reading, can be used to have multiple to the method that light source divides into groups.Generally speaking, by assembling light source according in view of the reading of some predetermined Conditions Evaluation, build the light source that can form the part of same group and the picture seeming the light source not belonging to same group.When this picture be clearly time, the light source that wherein can form group is assigned with the allocation step of shared group identity, and by described group of identity, they can by switch and other control hardware addressing.A part as the debug phase occurs by such grouping process usually, such as, is implemented between the initial installation period of illumination system, but also may can be implemented for less region (when requiring to upgrade) in other time.
The general concept of grouping described above can be implemented in every way.This specification distinguishes so-called " centralized " and " distributing " execution mode.In centralized execution mode, most of function is by the central controller controls of the control unit 200 such as such as shown in Fig. 2 or implements in the central controller, and this controller can form the global picture of complete illumination system in nature at it.In distributing execution mode, by system component self (mainly by light source self-such as, be configured as the light source 150 of the light source 300 shown in Fig. 3) executable operations in a distributed fashion, wherein for each assembly in each assembly, the limited view of whole illumination system is only had to be available.In this embodiment, central control unit plays limited effect or does not work.In some facilities, distributing execution mode may be useful especially, because the distributed nature of process means that it is height-adjustable.Therefore, although this execution mode associates with potential difficulty, in practice, this may be the preferred method in many facilities.
The grouping process that embodiment described below will be explained in further detail for these two kinds of execution modes, wherein makes quoting processing unit 210.As what can find out from compared by Fig. 2 and Fig. 3, processing unit 210 is the mutual components between the distributing execution mode of the light source using the centralized execution mode of control unit 200 and use such as light source 300.Therefore, unless there are statement other significantly, the function of processing unit 210 described below is applicable to centralized and both distributing execution modes.
For centralized execution mode, except processing unit 210, control unit 200 also comprise be arranged to obtain by light source detection to light and the receiver 220 of intensity of voice signal.In an embodiment, each can being configured in light source 150 provides the intensity measured by them to control unit 200 immediately after light source measurement to intensity.Alternatively, light source 150 can store intensity that their measure and be triggered (such as, by the trigger element 230 within control unit 200 also can be included in alternatively) intensity to be supplied to control unit 200 time just they are supplied to control unit 200.Trigger element 230 also can be used to one or more light source provide trigger with start to launch by by the light of other light source measurement and voice signal and/or be used to other light source provide trigger with receive and measure received by light and voice signal.By this way, control unit 200 can control the initiation of the grouping process of a part for the debugging as illumination system.Implementing this system makes light source only start the energy ezpenditure of reception and measuring-signal permission preservation light source when being triggered and doing like this, because their light and sound receiving interface may be configured to be in idle pulley under normal circumstances, and just wake up to make measurement when being triggered and doing like this.In a further embodiment, if more than one light source 150 needs to launch by by the sound of other light source measurement and light signal, then trigger element 230 can control the order that light source launches their signal.Such as, trigger element 230 can provide triggering sequentially to different light sources, and to ensure when a light source is launching its light and voice signal, other all light sources is not launched similar signal and only measures the signal launched by the first light source.Alternatively, control unit 200 can comprise further for showing the final of grouping process or intermediate object program to user and being provided for the display (not shown in fig. 2) of the light source of controlled light system and the user interface of other element.Control unit 200 can comprise memory and control (RF/WiFi) unit (the two does not all show in fig. 2) of specifying specially for controlling light source alternatively further.Further, although control unit 200 is illustrated as single unit, but those skilled in the art will recognize that and the element of the illustrated in fig. 2 individuality in control unit 200 functional also can be distributed in several other unit, such as, wherein individual light source can perform some in this process.Finally, it should be noted that, in centralized execution mode, light source 150 can be configured as light source 300, its element is described below, except such light source does not need complete or any functional (because the functional of this unit has been included in control unit 200) with the processing unit 210 shown in Fig. 3.All light source, switch, transducer and the further controller of illumination system 140 can be linked to central control unit 200 via network, and the address unique by their system and by device type and subtype (such as such as downlight is to laundry pinup), these all equipment are all can be alone discernible for control unit 200.
For distributing execution mode, except processing unit 210, light source 300 also at least comprises the light source receiving optical signals that is arranged to from other and measures the optical receiver 320 of their intensity and be arranged to and receive voice signal from other light source and measure the sound receiver 330 of their intensity.Then light source 300 can signal received by self process by processing unit 210, or to for the treatment of another equipment (such as such as to control unit 200) value of light and the intensity of sound detected is provided.Alternatively, light source 300 can comprise optical transmitting set 340 and acoustic emitter 350 further.If both the receiver that each in the light source 150 in illumination system 140 comprises light and voice signal and reflector, then each in light source can be configured to not by means of only receive and also by send by by other light source measurement to signal fully participate in grouping process.Sound receiver 330 and acoustic transmitter 350 may Already in light source as a part for the intelligent lighting system of the existence of the people be automatically adapted in room, make it follow attracting approach because the hardware of existing light source do not need upgraded significantly.In distributing execution mode, the controller being similar to control unit 200 also can play a role, but is only limitted to its basic function, such as such as controls the general phase of this process, that is, provide measurement, grouping and allocation step between border.
Fig. 4 is the flow chart making to carry out with light harmony sound the method step of the Auto-grouping of light source according to an embodiment of the invention.Although the element shown in composition graphs 1-3 describes the method step, those skilled in the art will recognize that any system being configured to perform with any order the method step is within scope of the present invention.Especially, quote at least first, second, and third light source, each in them can be one in light source 150.Numeric reference (namely first, second, third) in this specification and claim is not be intended to illustrate any sequential order or any anything else except providing the differentiation between different light source.
Before the method starting Fig. 4, the first light source is launched the light signal of other light source measurement by illumination system and voice signal.At least one light source (secondary light source) can at least detect and measure the intensity of both the light and voice signal launched by the first light source.In addition, secondary light source also can measure the TOF of the voice signal launched by the first light source, and its light signal launched for the first light source is measured.In addition, secondary light source can be configured to measure its oneself light and voice signal, and its oneself light and voice signal may need to be provided to the object of processing unit 210 for calibrating.
In an embodiment, the light that light source on the ceiling can be configured to main other their light signal of radiation down instead of towards side is installed, and the photodetector then receiving light source is configured to detect by the light signal reflected.
In the embodiment of distributing execution mode, the first light source can by the light source chosen randomly.Then the first light source can be configured to by transmitting the search (SSONL) of light source " start contiguous " that message (such as, communication network via illumination system 140) start search utility, and produce by its light of other light source detection and voice signal.Then, the light source near the first light source can receive by the message that transmits and the intensity of sound received by measuring and light signal and the TOF of voice signal that receives.If communication network is CL network (being described in greater detail below), then send SSONL message via CL, and this message itself can be the light signal for being launched by the first light source of other light source measurement.In other words, then secondary light source will measure the intensity of the light signal received to the intensity of the light that SSONL message is encoded by measurement.
Then the method for Fig. 4 can start with step 410, wherein processing unit 210 at least obtain launched by the first light source, in the intensity (or its derivative) of the measured light of secondary light source and voice signal.Alternatively, processing unit 210 can also obtain other result measured performed by secondary light source in step 410, such as such as TOF measurement and the light of himself and the measurement of voice signal.This information can by processing unit 210 in step 420 and 430 by the stability used such as advantageously to eliminate indefinite property and the system of operation improving.
In distributing execution mode, wherein processing unit 210 is the processing units in secondary light source in this context, performs step 410 and may mean that processing unit 210 receives the intensity of the light signal launched by the first light source and receives by the intensity of the voice signal of the first light source transmitting from sound receiver 330 from optical receiver 320.
Processing unit 210 is in the centralized execution mode of processing unit in control unit 200 wherein, performs step 410 and may mean that processing unit 210 receives the intensity of light that launched by the first light source, that measured by secondary light source and voice signal from secondary light source via receiver 220.For this reason, control unit 200 can provide triggering to report that it is measured to secondary light source.
For centralized and both distributing execution modes, likely more than one light source may by chance simultaneously or launch their light and voice signal in the time of overlap, this may provide the benefit of grouping process faster, but then needs the measurement carrying out at receiving terminal place adding not only still reliably be detected to make light and voice signal but also correctly distinguished.The light source that expression receives different light and voice signal simultaneously should be distinguished and distinguish between the voice signal of individuality between the light signal of individuality to use term " differentiation " to mean in this context, and each received light signal can be matched with the voice signal be associated, by the light launched by same light source and voice signal pairing.For this reason, each transmitting illuminant can be configured to such as with specifically predetermined pattern or with their light of the range transmission of specific frequency and voice signal, makes to receive the pairing that light source can identify light and the voice signal received from single transmitting illuminant.
Although optional, for centralized and both distributing execution modes may it is advantageous that the light launched and voice signal comprise the device type of transmitting illuminant and/or transmitting illuminant certain identify.Such identification and the out of Memory be included in light and voice signal may be needed can be included in the signal of the type of any suitable coding.Such as, use the information being wherein represented as data-signal will be applied to the drive singal of light source by modulated response in this data-signal and the CL technology that is embedded in the light output of light source, this information can be included in the light signal launched by light source.For by data, the technology be embedded in the light output of light source has multiple (such as, pulse width modulation, which amplitude modulation etc.) by this way, they are known to those skilled in the art, and therefore than not being described in detail here.Data-signal such as can comprise the marker symbol of the individuality of transmitting illuminant.As used herein, the expression of " identifier of light source " refers to any code of the sufficient identification of the light source of the individuality allowed in illumination system.Data-signal can comprise the out of Memory about transmitting illuminant and/or illumination system further, the device type of such as such as light source, the current light of light source are arranged (such as, the light that light source is launched and/or the emissive porwer of voice signal) and/or the additional information of position about the window in such as room or projector, or are useful any out of Memory making in the decision whether the first and second light sources should be assigned to identical group processing unit 210.In an embodiment, data-signal repeatedly (such as, is repeated for N time of data code) to be embedded in the light signal of transmitting illuminant to ensure the reliable Detection of the CL data at receiving terminal place.
What be also applicable to two kinds of execution modes is one or more light and voice signals that may be configured to repeatedly launch them in transmitting illuminant, to guarantee that other light source can reliably measure the signal received.
Then, method forwards step 420 to, wherein at least use the value of the light received of the first light source obtained in step 410 and the intensity of voice signal, processing unit 210 determines the value of block function, and this value can be called as the quality factor (FoM) in order to the object of dividing into groups.Block function can be that the value taking to obtain in step 410 allows processing unit 210 to make any suitable function that whether should be assigned to the decision of same group about the first and second light sources as input.In step 430, processing unit 210 determines whether the block function identified at step 420 which meets the one or more predetermined conditions for the first and second light sources being divided into identical group.
Such as, block function may depend on the ratio between the intensity of light signal that launched by the first light source, that measured by secondary light source and the intensity of voice signal.Then, the predetermined condition for dividing into groups to light source can be block function or at least calculated ratio within the value scope that certain is predetermined, processing unit 210 utilizes this value to make to compare.Such as, if the first light source is one in the light source 150 in room 130, and secondary light source is in light source 150 in room 120 one and wall 110 is glass walls, the voice signal then launched by the first light source will be attenuated significantly, and it is reflected in the ratio between the light and the intensity of voice signal of the reception calculated.In another example, if the first light source is in light source 150 in room 130 again, and secondary light source is one in light source 150 in room 120, but wall 110 is that not a road extends up to the opaque partition wall of ceiling (not shown in FIG), and the first light signal is configured to the major part of launching its light signal down, the first light signal then received by secondary light source will be decayed significantly, because its major part will not pass opaque partition wall, again, ratio between the light received calculated and the intensity of voice signal reflects by this.
In another example, block function can depend on comparing of each received intensity and corresponding predetermined threshold value, if arbitrary intensity is less than its threshold value, then causes these two light sources not to be grouped.
Certainly, the assembly of block function during can to comprise in these examples each, and evaluated according to multiple predetermined condition, to obtain the first and second light sources analyzing more completely relative to each other.In addition, for these examples whole of block function, alternatively, before comparing with some threshold values in ratio calculated and/or by the value of these intensity, the light launched by the first light source received and the intensity of voice signal can be normalized.In one embodiment, can relative to being launched by secondary light source and completing normalization by the light of its measurement and the intensity of voice signal, this intensity also can be provided to the part of processing unit as step 410.In another embodiment, can complete normalization relative to the emissive porwer of the light of the first light source and voice signal, this intensity also can be provided to the part of processing unit as step 410.In another embodiment, can relative to launched by the first light source, the TOF of voice signal that measured by secondary light source completes normalization, this TOF also can be provided to the part of processing unit as step 410.By considering wider picture, be appreciated that the operation of grouping.Usually, light and voice signal change transmitting the signal dynamics that makes to receive along with path according to antipower law.In the free space condition of classics, the signal dynamics received and 1/d^n proportional, wherein d represents the distance between transmitter and receiver, and n=2.In the situation of indoor, index n normally by empirical modeling, and find higher value (such as 3.5 or 4) often more preferably coupling be used for observing.
In order to the convenience of numerical value aspect, path loss can be represented with decibel (dB) with logarithm, and for the pairing of any light source of being separated by distance d in Fig. 1, the general path loss equation for light and sound is as follows:
PL (light)=specific loss (light)+10 * n (light) * log10 (d)+spacer loss (light)
PL (sound)=specific loss (sound)+10 * n (sound) * log10 (d)+spacer loss (sound)
Except depending on the item of index n, these equatioies comprise two extra items.Independent of the distance between light source and therefore all fixing losses and all fixing items are collected together by specific loss item, and comprising is constant receiver sensitivity across the pairing of all identical types substantially.If spacer Loss Terms is taken into account signal and be must pass over the extra loss that wall, spacer or some other obstacle just may cause.There is not the situation of such spacer, or spacer is in transparent situation, spacer loss is zero.When existence is all nontransparent spacer to light or sound, corresponding spacer loss may be higher substantially.Therefore, in the first example, for each transmission mode, spacer loss can be estimated to determine whether two light sources are in same room.In the second example, if this estimation is different across different transmission modes, namely, a transmission mode instruction light source will be in same room, and other transmission mode instruction they will be in the room of separation, then possibility is to exist is all the transparent spacer of having a mind to light or sound by chance.
As a part for grouping strategy, the signal dynamics intensity (RSSI) received can be written as:
RSSI (light)=radiant power (light) – PL (light)
RSSI (sound)=radiant power (sound) – PL (sound)
Wherein term radiation power represents the power of the signal launched by the first light source.Then, can use in principle below some or all perform the grouping of the first level:
-when RSSI(light) and RSSI(sound) in any one or the two too low and when can not be recorded, these two light sources are not grouped in together;
If-n(light) and n(sound) when being probably equal to each other, then, for any pairing in the light source do not divided by spacer, PL(light) and PL(sound) between difference be less constant, and light source can be grouped in together; For this reason, light source can provide necessary calibration to the measurement of himself signal;
-when known n(light) and n(sound) when being different, can be used to compensate to knowing of the distance between two light sources from ToF reading; And, if enough RSSI readings are available, then can estimate the n(light for specific environment in original place) and n(sound);
-when PL(light) and PL(sound) between difference and constant basis identified before when obviously departing from, light source can be assumed to be to be separated by spacer and to be grouped individually, wherein use aggregation algorithms can determine the threshold value being considered to " significantly " in original place, and the knowing of distance between wherein can using light source.
As described before, the block function that the RSSI reading measured to major general and the estimation that may measure for the distance between light source, the external information about luminous element type and other pre-grouped data etc. are taken into account can be used to calculate the FoM for the link between each light source.Then, by assembling " quality factor " and determining that light source will be assumed to be the scope that is in same room and therefore be used for the candidate that divides into groups to apply further level grouping at each light source place thus wherein.First, all light sources can be assumed that a group.According to an embodiment, possible algorithm is assembled and can be comprised the following steps: find there is immediate FoM two groups, make these two groups as the part of same new group, and repeat these two steps until certain termination event.
The light source that such algorithm is the most all is divided into single group.Therefore, in order to prevent this point, the termination event that more suitable some place stops algorithm can being defined in.In the situation of Fig. 1, block function is by the obvious jump of the FoM aspect between two groups writing down on relative side compared with the group on the same side, spacer.Because this algorithm is from immediate FoM identification group upwards, so this jump means that the group be present in now on the relative side of spacer is being grouped in together.This is suitable halt.In the situation of Fig. 1, stop at this some place causing that there are two groups, a group on each side of spacer.
As step 420 and 430 a part, when making the decision that whether should be grouped about the first and second light sources, processing unit 210 also can consider other additional information.Such as, the character of light source and type can be taken into account by processing unit 210, and such as determine when the type of two light sources is all wall lamp that the first and second light sources belong to same group really.In another example, processing unit 210 can consider other information (received as the part of step 410, or in processing unit 210 pre-stored), the position of such as, window, projector etc. in structure 100.In such circumstances, there is the information of projector and screen in processing unit 210 in such as room by having, and the light source in room must be divided into two groups, namely near the light source of screen and the light source away from screen.
In an embodiment, processing unit 210 can be configured to the signal transacting in step 420 and 430 to be constrained to little region (such as, renovation or the region that configures again).Processing unit 210 such as can be configured to never create the group having diameter and be greater than 10 meters.Distance estimations can be based on the TOF between contiguous light source and triangulation.
In an embodiment, processing unit 210 can be configured to step 420 and 430 process during certain some place receive receive user input, thus realize the possible manpower intervention on basis as required.Such user's input can instruction processing unit 210 about the further consideration of the combination such as organized or fractionation.
In distributing execution mode, be included in each light source (such as, secondary light source) in processing unit 210 make this light source and whether should be grouped in and there is it substantially independent of other event contingent in illumination system (such as, measured independent of which type of some other light source) and the decision therefrom receiving and measure in the group of the light source (such as, the first light source) of light and voice signal.On the other hand, the processing unit 210 be included in the control unit 200 of centralized execution mode also can consider the other information received from other light source when whether decision is grouped in the first and second light sources together.
If processing unit 210 determines that the block function calculated meets one or more predetermined condition, then in step 440, the first and second light sources are dispensed to same group by processing unit 210.Otherwise method wherein the first and second light sources is not assigned to end in the step 450 of same group.
In the distributing execution mode of allocation step 440, light source 300 self divides into groups.In order to complete this program, light source needs to communicate with one another to establish the group identity of set and procedure request adds the group of the luminous element from candidate.Such algorithm is present in the MAC protocol of the wireless standard of such as such as 802.15.4.Such as, by operating random backout routine, the first light source can send " group leader " signal.Responsively, their record of light source inspection of this signal is received and those light sources wanting to become a part for the group of this light source can send " adding " request again according to random rollback channel access strategy.Then, the first light source can contrast the list of himself to consider that these are asked, and or the light source that accepts request enter in its group or refuse their request.
Further, in the distributing execution mode of allocation step 440, the controller of the vicinity of illumination system and other parts can be configured to the new group focused near them.In this embodiment, automatically distribute and any possible place is completed, and leave the possibility for artificial assistance and meticulous adjustment request based on concrete situation.The distributing execution mode of allocation step 440 additionally can implement for the treatment of unaccepted, by isolate or the process of light source that is otherwise assigned with improperly, for group role of leaders is reassigned to the process of the light source of such as more preferably locating, and for passing on the process of the information between the light source at the opposite end place in long room.In an embodiment, the light source being selected to the group leader of individual group can be configured to send the beacon allowing the network upgrade of joining about the component changed.
In the centralized execution mode of allocation step 440, processing unit 210 can be configured to each light source and distribute local unique group ID.Control unit 200 can be configured to the group of informing the light source be positioned near them to other parts (such as, other controller) of illumination system.Similar with distributing execution mode, complete automatic distribution by any possible place, and leave the possibility for artificial assistance and meticulous adjustment request based on concrete situation.
Embodiments of the invention utilize indefinite situation of the kind described by the advantage that light and sound carry out combining being helped to solve.Additionally, because light and sound are advanced with greatly different speed, so the availability of the two allows the TOF of single channel voice signal fully accurately to be measured, can determine the distance between two light sources exactly.This information can be used to instruct grouping process further.
Various embodiment of the present invention can be implemented as the program product used together with computer system, wherein the function of the embodiment of (multiple) application definition (comprising method described herein) of program product.In one embodiment, (multiple) program can be comprised on various permanent computer-readable recording medium, wherein, as used herein, the expression of " permanent computer-readable recording medium " comprises all computer-readable mediums, and wherein unique eliminating is temporary transient transmitting signal.In another embodiment, (multiple) program can be comprised on various temporary transient computer-readable recording medium.Illustrative computer-readable recording medium includes but not limited to: (i) information by the storage medium that can not write stored thereon forevermore (such as, read-only memory equipment in computer, the solid state non-volatile semiconductor memory of the CD-ROM dish that such as can be driven by CD-ROM, rom chip or any type); And (ii) changeable information is stored readable storage medium storing program for executing (the solid-state random accesP semiconductor memory of the floppy disk such as, in flash memory, disk drive or hard drive or any type) thereon.Computer program can run on processing unit 210 described herein.
Although be more than for embodiments of the invention, it is contemplated that of the present invention other and further embodiment, and do not depart from base region of the present invention.Such as, aspect of the present invention with hardware or software or can be implemented with the combination of hardware and software.Therefore, scope of the present invention is determined by claim subsequently.
Claims (15)
1. a method, comprising:
After the first light source (150) launches the first light signal and first sound tone signal,
Use the intensity of the intensity of described first light signal received by secondary light source and the described first sound tone signal received by described secondary light source to determine the value of block function, and
When the value of determined block function meets one or more predetermined condition, described first light source and described secondary light source are dispensed to the group of identical light source.
2. the method for claim 1, ratio between the intensity that wherein said block function depends on described first light signal received by described secondary light source and the intensity of described first sound tone signal received by described secondary light source, and described one or more predetermined condition comprises described ratio is in condition in predetermined scope.
3. method according to claim 1 and 2, comprises further and determines that described secondary light source receives the difference between time that time of described first light signal and described secondary light source receive described first sound tone signal.
4. method according to claim 3, wherein said block function depends on determined difference, and described one or more predetermined condition comprises the condition of determined difference lower than predetermined value.
5. the method according to claim 3 or 4, the intensity of described first light signal wherein received by described secondary light source and the intensity of described first sound tone signal received by described secondary light source comprise the value being normalized to described determined difference.
6. the method according to any one in claim 1-4, the intensity of described first light signal wherein received by described secondary light source comprises the value of the intensity being normalized to described first light signal launched by described first light source, and the intensity of the described first sound tone signal wherein received by described secondary light source comprises the value of the intensity being normalized to the described first sound tone signal of being launched by described first light source.
7. the method according to any one in aforementioned claim, at least one in wherein said first light signal or described first sound tone signal comprises and indicates the information of the identity of described first light source and/or indicate described first light source to be assigned to the information of the identity of its group.
8. a control unit (200), comprising:
Receiver (220), is arranged to the intensity of the intensity obtaining the first light signal received by secondary light source and the first sound tone signal received by secondary light source, and
Processing unit (210), is arranged to the step performed according to the one or more described method in claim 1-7.
9. control unit according to claim 8 (200), wherein:
Described receiver (220) is further configured to the intensity obtaining the intensity of described first light signal received by the 3rd light source and the described first sound tone signal by described 3rd light source reception, and
Described processing unit (210) be further configured to use the intensity of described first light signal received by described 3rd light source and the intensity of described first sound tone signal that received by described 3rd light source to determine the value of described block function, and when the value of determined block function meets described one or more predetermined condition, described first light source and described 3rd light source are dispensed to the group of identical light source.
10. control unit (200) according to claim 8 or claim 9, comprise trigger element (230) further, it is arranged to provide to trigger to launch described first light signal and described first sound tone signal and/or provide to described secondary light source to described first light source and triggers to receive described first light and voice signal and the intensity determining described first light and voice signal.
11. control units according to claim 10 (200), wherein said trigger element (230) is arranged to further provide to trigger to launch the 4th light signal and falling tone tone signal and/or provide to one or more in described first light source and described secondary light source to the 4th light source and triggers to receive described 4th light and voice signal and the intensity determining described 4th light and voice signal.
12. control units according to claim 11 (200), wherein sequentially provide for the triggering of described first light source and the triggering for described 4th light source.
13. secondary light sources (300), comprising:
Optical receiver (320), is arranged to reception first light signal and determines the intensity of described first light signal received by described secondary light source;
Sound receiver (330), is arranged to the intensity receiving first sound tone signal, determine the described first sound tone signal received by described secondary light source; And
Processing unit (210), is arranged to the step performed according to the one or more described method in claim 1-7.
14. secondary light sources according to claim 13 (300), comprise the optical transmitting set being arranged to transmitting second light signal and the acoustic emitter being arranged to transmitting second sound signal further.
15. 1 kinds of computer programs comprising software code partition, described software code partition is arranged to the step performed when it is run on a processing unit according to the one or more described method in claim 1-7.
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| WO2017036848A1 (en) * | 2015-09-04 | 2017-03-09 | Philips Lighting Holding B.V. | Wireless-communication enabled lamps |
| US9949331B1 (en) * | 2017-05-01 | 2018-04-17 | Gooee Limited | Automated luminaire identification and group assignment |
| US10021771B1 (en) * | 2017-05-02 | 2018-07-10 | Jdrf Electromag Engineering Inc. | System and method for automatically creating and operating a functional association of lights |
| US10448482B2 (en) | 2017-05-02 | 2019-10-15 | Jdrf Electromag Engineering Inc. | System and method for automatically creating and operating a functional association of lights |
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| US10405402B2 (en) * | 2017-10-18 | 2019-09-03 | Usai, Llc | Power conservation for distributed lighting system |
| EP3624561A1 (en) | 2018-09-17 | 2020-03-18 | Helvar Oy Ab | Method and arrangement for dynamic grouping of devices in a lighting system |
| IT201900018161A1 (en) * | 2019-10-08 | 2021-04-08 | Ledworks Srl | Lighting system and control method of said system |
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| WO2014118676A1 (en) | 2014-08-07 |
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| US9609723B2 (en) | 2017-03-28 |
| JP5982067B2 (en) | 2016-08-31 |
| EP2952064A1 (en) | 2015-12-09 |
| JP2016507130A (en) | 2016-03-07 |
| US20150373812A1 (en) | 2015-12-24 |
| JP6157037B2 (en) | 2017-07-05 |
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